[PATCH 01/13] drm/i915: Add skl+ plane name aliases to enum plane_id

[Jani Nikula]

On Thu, 16 May 2024, Ville Syrjala <ville.syrjala at linux.intel.com> wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Using PLANE_PRIMARY + PLANE_SPRITE? on skl+ results in a bunch
> of unnecessary head scratching. Add aliases using the skl+ plane
> names.
> And for pre-skl we only need to keep PRIMARY,SPRITE0,SPRITE1
> as we only ever have 0-2 sprites per pipe on those platforms.

Should these be changed too?

- intel_plane_set_ckey()
- for_each_plane_id_on_crtc()

I'm not sure. But there's one real issue:

> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index 32d10e62b2b9..d0bfee2ca643 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -238,9 +238,9 @@ int skl_format_to_fourcc(int format, bool rgb_order, bool alpha)
>  static u8 icl_nv12_y_plane_mask(struct drm_i915_private *i915)
>  {
>  	if (DISPLAY_VER(i915) >= 13 || HAS_D12_PLANE_MINIMIZATION(i915))
> -		return BIT(PLANE_SPRITE2) | BIT(PLANE_SPRITE3);
> +		return BIT(PLANE_6) | BIT(PLANE_7);
>  	else
> -		return BIT(PLANE_SPRITE4) | BIT(PLANE_SPRITE5);
> +		return BIT(PLANE_4) | BIT(PLANE_5);

The if branches got swapped?

BR,
Jani.


-- 
Jani Nikula, Intel